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arXiv 0905.3187hep-ph
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电弱理论中未解之谜

Unanswered Questions in the Electroweak Theory

Chris Quigg

摘要:

这篇文章致力于在欧洲核子研究中心的大型强子对撞机实验前夕的电弱理论的地位。在对迄今为止已经建立的实验测试进行检查之前,先对电弱理论的逻辑和结构进行一个紧凑的总结。在电弱理论中,最突出的未经证实的预言是希格斯玻色子的存在。希格斯玻色子是一种弱相互作用的自旋为零的粒子,是电弱对称破缺的媒介,是弱规范玻色子、夸克和轻子的质量赋予者。一般的论点暗示,希格斯玻色子或其他新的物理学需要在TeV的能量尺度上。对电弱测量的全球分析的间接限制表明,标准模型希格斯玻色子的质量小于200 GeV。一旦假定了它的质量,希格斯玻色子玻色子的性质就可以从电弱理论中推导出来,这些性质为寻找希格斯玻色子玻色子提供了信息。综述了电弱对称性破缺的替代机制,并通过考虑一个没有特定机制来隐藏电弱对称性的世界来阐明电弱对称性破缺的重要性。尽管电弱理论取得了许多成就,但它也有许多缺点。. . .

英文摘要:

This article is devoted to the status of the electroweak theory on the eve of experimentation at CERN's Large Hadron Collider. A compact summary of the logic and structure of the electroweak theory precedes an examination of what experimental tests have established so far. The outstanding unconfirmed prediction of the electroweak theory is the existence of the Higgs boson, a weakly interacting spin-zero particle that is the agent of electroweak symmetry breaking, the giver of mass to the weak gauge bosons, the quarks, and the leptons. General arguments imply that the Higgs boson or other new physics is required on the TeV energy scale. Indirect constraints from global analyses of electroweak measurements suggest that the mass of the standard-model Higgs boson is less than 200 GeV. Once its mass is assumed, the properties of the Higgs boson follow from the electroweak theory, and these inform the search for the Higgs boson. Alternative mechanisms for electroweak symmetry breaking are reviewed, and the importance of electroweak symmetry breaking is illuminated by considering a world without a specific mechanism to hide the electroweak symmetry. For all its triumphs, the electroweak theory has many shortcomings. . . .

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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